/* キミとAI の共通スタイル。色はここの変数だけで決める */
:root {
  --bg: #fff8fa;
  --surface: #ffffff;
  --text: #3a2f38;
  --muted: #8a7a86;
  --accent: #d9678f;
  --accent-soft: #fbe3ec;
  --line: #f0dbe3;
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1d171c;
    --surface: #2a2128;
    --text: #f3e9ef;
    --muted: #b29fab;
    --accent: #f08db1;
    --accent-soft: #3c2632;
    --line: #3d3039;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Maru Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif;
  line-height: 1.7;
}
a { color: var(--accent); }
main { max-width: 720px; margin: 0 auto; padding: 0 16px 32px; }

.site-header { max-width: 720px; margin: 0 auto; padding: 14px 16px; }
.site-logo { font-weight: 700; font-size: 1.15rem; text-decoration: none; }

.hero { text-align: center; padding: 28px 0 20px; }
.hero h1 { margin: 0 0 8px; font-size: 1.9rem; color: var(--accent); letter-spacing: .05em; }
.hero-lead { margin: 0; color: var(--muted); }

.chara-list { display: grid; gap: 14px; }
.chara-card {
  display: flex; gap: 14px; align-items: center;
  padding: 16px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--line);
  color: inherit; text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}
.chara-card:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(217, 103, 143, .15); }
.chara-face {
  flex: none; width: 72px; height: 72px; border-radius: 50%; overflow: hidden;
  display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); font-size: 1.8rem; font-weight: 700;
}
.chara-face picture, .chara-face img { width: 100%; height: 100%; }
.chara-face img { object-fit: cover; object-position: center 20%; transform: scale(1.25); transform-origin: center 35%; }
/* 絵がまだ無いキャラは名前の1文字 */
.chara-face .chara-initial { display: none; }
.chara-face.no-img .chara-initial { display: inline; }
.chara-body { display: grid; gap: 2px; min-width: 0; }
.chara-label { font-size: .8rem; color: var(--accent); }
.chara-name { font-size: 1.15rem; font-weight: 700; }
.chara-name small { margin-left: 8px; font-size: .8rem; font-weight: 400; color: var(--muted); }
.chara-profile { font-size: .9rem; color: var(--muted); }

.site-footer { max-width: 720px; margin: 0 auto; padding: 20px 16px 32px; font-size: .8rem; color: var(--muted); text-align: center; }
.site-footer p { margin: 4px 0; }

/* ---- チャット画面 ---- */
.page-chat main { padding-bottom: 16px; }
.chat { display: grid; gap: 12px; }
.chat-head { display: flex; gap: 14px; align-items: center; }
.chat-portrait {
  flex: none; width: 128px; height: 160px; border-radius: var(--radius);
  background: var(--accent-soft); overflow: hidden; display: grid; place-items: center;
}
.chat-portrait-img { width: 100%; height: 100%; object-fit: cover; }
.chat-portrait-fallback { font-size: 2.4rem; font-weight: 700; color: var(--accent); transition: transform .2s; }
.chat-portrait[data-expression="smile"] .chat-portrait-fallback,
.chat-portrait[data-expression="blush"] .chat-portrait-fallback { transform: scale(1.08); }
.chat-portrait[data-expression="blush"] { background: #f9d2e0; }
.chat-portrait[data-expression="sad"] { filter: saturate(.6); }
.chat-who p { margin: 0; }
.chat-label { font-size: .8rem; color: var(--accent); }
.chat-name { font-size: 1.2rem; font-weight: 700; }
.chat-ai-badge {
  display: inline-block; margin-top: 4px !important; padding: 0 8px; border-radius: 999px;
  font-size: .7rem; color: var(--muted); border: 1px solid var(--line);
}
.chat-switch { display: block; margin-top: 4px; font-size: .8rem; }

.chat-log {
  display: flex; flex-direction: column; gap: 10px;
  min-height: 280px; max-height: 58vh; overflow-y: auto;
  padding: 14px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line);
}
.msg { max-width: 85%; }
.msg p { margin: 0; padding: 9px 13px; border-radius: 16px; white-space: pre-wrap; word-break: break-word; }
.msg-assistant { align-self: flex-start; }
.msg-assistant p { background: var(--accent-soft); border-top-left-radius: 4px; }
.msg-user { align-self: flex-end; }
.msg-user p { background: var(--accent); color: #fff; border-top-right-radius: 4px; }
.msg.is-typing p { color: var(--muted); animation: typing 1s infinite alternate; }
@keyframes typing { from { opacity: .4; } to { opacity: 1; } }

.crisis { padding: 12px 14px; border-radius: 12px; border: 1px solid var(--accent); background: var(--surface); font-size: .9rem; }
.crisis-title { margin: 0 0 6px; font-weight: 700; }
.crisis ul { margin: 0; padding-left: 1.2em; }

.chat-form { display: flex; gap: 8px; align-items: flex-end; }
.chat-form textarea {
  flex: 1; resize: none; font: inherit; padding: 10px 12px;
  border-radius: 12px; border: 1px solid var(--line); background: var(--surface); color: var(--text);
}
.chat-form button, .welcome-actions button {
  font: inherit; font-weight: 700; padding: 10px 18px; border: 0; border-radius: 12px;
  background: var(--accent); color: #fff; cursor: pointer;
}
.chat-form button:disabled { opacity: .5; cursor: default; }
.chat-remaining { margin: 0; font-size: .8rem; color: var(--muted); text-align: right; }

.welcome { max-width: 440px; width: calc(100% - 32px); border: 0; border-radius: var(--radius); padding: 0; background: var(--surface); color: var(--text); }
.welcome::backdrop { background: rgba(40, 20, 30, .45); }
.welcome-body { padding: 20px; display: grid; gap: 12px; }
.welcome-title { margin: 0; font-size: 1.2rem; font-weight: 700; color: var(--accent); }
.welcome-notes { margin: 0; padding-left: 1.2em; font-size: .9rem; }
.welcome-name { display: grid; gap: 4px; font-size: .9rem; }
.welcome-name input { font: inherit; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text); }
.welcome-age { font-size: .95rem; font-weight: 700; }
.welcome-actions { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.welcome-no { font-size: .8rem; }

/* ---- 商品の紹介（PR） ---- */
.pr-block { align-self: stretch; display: grid; gap: 6px; }
.pr-label { margin: 0; font-size: .75rem; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.pr-badge {
  display: inline-block; padding: 0 6px; border-radius: 4px;
  font-size: .7rem; font-weight: 700; color: var(--muted); border: 1px solid var(--muted);
}
.product-list { display: grid; gap: 8px; }
.product-card {
  display: flex; gap: 10px; padding: 10px; border-radius: 12px;
  background: var(--bg); border: 1px solid var(--line); color: inherit; text-decoration: none;
}
.product-card:hover { border-color: var(--accent); }
.product-img { flex: none; width: 72px; height: 72px; border-radius: 8px; object-fit: cover; background: var(--accent-soft); }
.product-body { display: grid; gap: 2px; min-width: 0; align-content: start; }
.product-title { font-size: .85rem; font-weight: 700; line-height: 1.4; }
.product-price { font-size: .85rem; color: var(--accent); font-weight: 700; }
.product-shop { font-size: .7rem; color: var(--muted); }
.product-comment { font-size: .8rem; }

/* ---- フッターのリンク・説明のページ・フォーム ---- */
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 14px; margin-bottom: 8px; }
.footer-links a { color: var(--muted); }
.doc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 20px 28px; }
.doc h1 { font-size: 1.4rem; margin: 0 0 12px; color: var(--accent); }
.doc h2 { font-size: 1.05rem; margin: 24px 0 6px; padding-left: 8px; border-left: 4px solid var(--accent); }
.doc p, .doc li { font-size: .92rem; }
.doc .updated { color: var(--muted); font-size: .8rem; }
.form { display: grid; gap: 12px; }
.form label { display: grid; gap: 4px; font-size: .9rem; }
.form input, .form select, .form textarea {
  font: inherit; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--bg); color: var(--text);
}
.form button { justify-self: start; font: inherit; font-weight: 700; padding: 10px 22px; border: 0; border-radius: 12px; background: var(--accent); color: #fff; cursor: pointer; }
.form .hp { position: absolute; left: -9999px; }
.notice { padding: 10px 14px; border-radius: 10px; background: var(--accent-soft); }
.errors { color: #c0392b; }

/* ---- 管理画面 ---- */
.page-admin main, .page-admin .site-header { max-width: 1100px; }
.admin-nav { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; margin-bottom: 12px; }
.admin-user { margin-left: auto; font-size: .8rem; color: var(--muted); }
.admin h1 { font-size: 1.3rem; }
.admin h2 { font-size: 1.05rem; margin-top: 24px; }
.admin-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
.admin-card { margin: 0; padding: 12px 14px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); display: grid; gap: 2px; }
.admin-card span, .admin-card small { font-size: .8rem; color: var(--muted); }
.admin-card strong { font-size: 1.4rem; }
.admin-table { width: 100%; border-collapse: collapse; font-size: .85rem; background: var(--surface); display: block; overflow-x: auto; }
.admin-table th, .admin-table td { padding: 6px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.admin-table th { white-space: nowrap; color: var(--muted); font-weight: 400; }
.admin-table .is-hidden { opacity: .5; }
.admin-table button, .admin-filter button { font: inherit; font-size: .8rem; padding: 2px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--text); cursor: pointer; }
.admin-filter { display: flex; gap: 8px; margin-bottom: 10px; }
.admin-pre { margin: 0; white-space: pre-wrap; font: inherit; }